/*
  Copyright (C) 2001 Laurent Martelli

  This program is free software; you can redistribute it and/or modify
  it under the terms of the GNU Lesser General Public License as
  published by the Free Software Foundation; either version 2 of the
  License, or (at your option) any later version.

  This program is distributed in the hope that it will be useful,
  but WITHOUT ANY WARRANTY; without even the implied warranty of
  MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  GNU Lesser General Public License for more details.

  You should have received a copy of the GNU Lesser General Public License
  along with this program; if not, write to the Free Software
  Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307  USA */

package org.objectweb.jac.util;

import java.lang.reflect.InvocationTargetException;


/**
 * Various often used Exception functions
 */
public class Exceptions
{
   public static Throwable getTargetException(Throwable throwable) {
      while (throwable instanceof WrappedThrowableException ||
             throwable instanceof InvocationTargetException) {
         if (throwable instanceof WrappedThrowableException) {
            throwable = ((WrappedThrowableException)throwable).getWrappedThrowable();
         } else if (throwable instanceof InvocationTargetException) {
            throwable = ((InvocationTargetException)throwable).getTargetException();
         }
      }
      return throwable;
   }
}
